The British horseracing world has been shaken by a major doping controversy that has seen prominent owner Andrew MacDonald handed a three-year disqualification after his promising colt Overpass returned a positive test for banned substance altrenogest.
Derby Dreams Dashed by Positive Test
The scandal emerged when Overpass, considered a genuine contender for this year's Epsom Derby, tested positive for the prohibited substance following his impressive victory at Chelmsford City in March. The four-year-old had been building an exciting profile within racing circles, making the revelation particularly damaging to connections.
Owner Accepts Responsibility in BHA Investigation
During the British Horseracing Authority's inquiry, MacDonald acknowledged his responsibility for the positive test, though he maintained the substance administration was entirely unintentional. The regulatory body determined the owner had failed in his duty to ensure the horse was presented free of prohibited substances.
The disciplinary panel emphasised: "The onus is on owners to ensure their horses compete cleanly, regardless of whether any rule breaches are deliberate or accidental."
What is Altrenogest and Why is it Banned?
Altrenogest, commonly known by the brand name Regumate, is a hormonal substance primarily used to suppress oestrus in mares. Its presence in racing is strictly prohibited due to potential performance-enhancing effects, including:
- Altering behaviour and temperament
- Potentially masking other prohibited substances
- Creating unfair advantages through hormonal manipulation
Racing Community Reacts to Disqualification
The three-year ban represents one of the most significant owner disqualifications in recent British racing history. MacDonald's suspension prohibits him from:
- Entering any British racecourses
- Participating in ownership syndicates
- Having any licensed involvement in the sport
The case serves as a stark reminder to all connections within the industry about the absolute necessity of medication control and substance awareness.
Future Implications for British Racing Integrity
This high-profile case comes at a sensitive time for British horseracing, with authorities increasingly determined to maintain public confidence in the sport's integrity. The BHA's decisive action demonstrates their commitment to zero-tolerance approaches regarding prohibited substances, regardless of intent.
As the racing world absorbs this development, attention now turns to how the industry can further strengthen protocols to prevent similar incidents and protect the reputation of this historic sport.
